温度センサー

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int n = 0
DS18B20 sensor[0:.n]
Arduino arduino;
 
pin vcc = arduino.vcc
pin gnd = arduino.gnd
pin data = vcc -- R4.7kΩ
 
sensor[0:.n].gnd = gnd
sensor[0:.n].dq  = data
sensor[0:.n].vdd = gnd // parasite power
 

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#include <OneWire.h>
#include <DallasTemperature.h>
 
OneWire oneWire(2);
DallasTemperature sensor(&oneWire);
 
#define N 2
 
void setup() {
  Serial.begin(9600);
  Serial.println("Begin OneWireTemprature");
  sensor.begin();
  delay(100);
  
  Serial.print("  sensor.getDeviceCount ==> ");
  Serial.println(sensor.getDeviceCount());
  delay(100);
}
 
 
void loop() {
  sensor.requestTemperatures();
  Serial.print("  T ==> [");
  Serial.print(sensor.getTempCByIndex(0));
  for(int i = 1; i < N; i++) {
    Serial.print(", ");
    Serial.print(sensor.getTempCByIndex(i));
  }
  Serial.println("]");
  delay(100);
}